Murphy L1100 User's Manual
Contents
1. 2 ZA SR x ae A 8 50 gt 7 7 72230 Operating pressure 2000 psi 13 8 MPa 138 bar Operating temperature 400 204 C Section 15 00 02 0563 01 11 06 12 15000478 Float Shaft Extension Al MA Material AISI 303 UNS S30300 CAUTION For use 15200 only Not interchangeable with 11200 parts Section 15 00 02 0563 01 11 06 13 Specifications All Models Body Nickel plated steel optional 316 stainless steel meets NACE standard MR 01 75 for direct exposure to H2S service Float 304 stainless steel to operate in 0 5 specific gravity or heavier fluids 115200 Series models only e Pressure rating 2000 psig 13 8 MPa 138 bar 25200 models only e O ring Viton LS200 e Process connection 2 NPT e Temperature rating 20 to 300 F 29 to 149 C e Electrical SPDT std see Electrical section for configuration rating e Wiring 18 AWG x 36 in 1 0 mm x 916 mm LS200NDVOR e Process connection 2 NPT e DVO valve 3 way N C w manual operator all connections 1 8 NPT minimum 30 psig required Filter pressure regulator set e Regulator 0 to 75 psig 0 to 517 kPa 0 to 5 17 bar range e Maximum input pressure 300 psig 2 07 MPa 20 7 bar LS200NDVO e Process connection 2 NPT e DVO valve 3 way N C w manual operator all connections 1 8 NPT LS200 N e Process connection2. Section 15 01 11 06 6 00 02 0563 Replacing and Installing the DVO Assembly NOTE When replacing installing the DVO assembly tubing and fitting modifications may be required We suggest removing the LS200NDVO DVOR from the vessel Relieve pressure from the vessel or use block valves before removing the LS200NDVO DVOR Models LS200NDVO 8 LS200NDVOR NOTE Clean dry instrument quality gas should be used Use and regular maintenance of filters will improve service life and reliability Tools Needed e Strap or pipe wrench e 9 16 Hex wrench e Tubing cutters and benders CAUTION LS200 series parts are not interchangeable with the L1200 Series Section 15 00 02 0563 01 11 06 7 Instructions 1 2 3 4 5 6 7 8 9 Block off and bleed the instrument gas pressure supply to the LS200NDVO DVOR Remove the tubing between the LS200NDVO DVOR and the scrubber dump valve and remove the supply gas tubing regulator R if used Remove the LS200NDVO DVOR from the vessel optional If the LS200NDVO DVOR was removed from the vessel mount it in a suitable vise on a work bench if possible Using the proper tools disconnect the Inlet Outlet and Exhaust fittings from the existing DVO See Figure 1 You will re connect these to the new DVO in a later step NOTE The following steps must be done with the DVO in the upright position on top of the LS200NDVO Remove the LS200NDVO
3. 2 NPT e Vent valve 2 way N C snap action w 1 16in 2mm orifice and Viton seat Inlet 1 8 NPT outlet 3 8 NPT L1100 e Process connection 1 1 2 NPT e Pressure rating 1500 psig 10 3 MPa 103 2 bar e Float BUOYGLAS operates to 0 5 specific gravity Optional stainless steel to operate in 0 65 specific gravity e Electrical SPDT switch Approximate Shipping Weights and Dimensions All models 6 lb 10 oz 3 kg 14 x 5 x 3 1 2 in 356 x 127 x 89 mm Section 15 01 11 06 14 00 02 0563 MURPHY the Murphy logo and Liquid level Switches LS are registered and or common law trademarks of Murphy Industries Inc This document including textual matter and illustrations is copyright protected by Murphy Industries Inc with all rights reserved c 2005 Murphy Industries Inc Other third party product or trade names referenced herein are the property of their respective owners and are used for identification purposes only Section 15 00 02 0563 01 11 06 15 MURPHY www fvwmurphvy com 918 317 4100 sales fwmurphy com
4. Specifica ONS a aa a ar aream ga a ia id a ai dag aa E an in n d ai aa r 14 AUS Z S the de a aa d Aaaa 14 E A ei ea Pa NOI a 14 HS200NEVOR jaa a 14 FES200NEVO gt deer cap ala ata a ea i Ea a aa i Ea a E sa sa 14 LS200 SN MC ea ss mi 14 sonets adeliae 14 THIS PAGE INTENTIONALLY LEFT BLANK Product Information Features Designed for harsh gas compressor scrubber applications 304 stainless steel float operates in 0 5 specific gravity and heavier fluids LS200 series rated for 2000 psi 13 8 MPa 138 bar working pressure Electric and pneumatic models available Improved design provides better snap action and dependability with reduced number of moving parts All models screw directly into the vessel or can be mounted via external float chamber Nickel plated body to provide enhanced corrosion protection Improved float connection thread design provides a more secure connection Listed for Class Div 1 Grp 4 D locations Canadian Registration Number OF 1476 2 LS200 LS200 Liquid Level Switches with 2 NPT mounting are float activated to operate an electrical SPDT snap switch optional DPDT on some models for alarm or shutdown of an engine or electric motor The LS200 connects via a thread o let directly into the vessel wall and can be used with a weld collar P N 15050375 or Murphy external float chamber L1100 models 1 1 2 NPT are als
5. aN gt 2 Atee and bleed valve are typically installed at the gt Block bottom of the lower 1 inch pipe riser to allow draining of the float chamber for servicing or replacement NOTE A typical installation with blocking and bleed valves is shown at right Explosion proof conduit seal where required Install the LS200 or LS200N NDVO NDVOR in the 2 NPT connection of the float chamber BE SURE float travel is not restricted and that the float 15 tight onto the float shaft 4 To complete installation and wiring follow the instructions for mounting directly into wall of the vessel and for wiring Installation and Adjustment for Pneumatic Models 1 All pneumatic models operate on the vent RECOMMENDED principle _A Filter Regulator The pneumatic signal source must be Tank clean dry Instrument Quality air Operator Assembly natural gas Signale 2 ES The input pneumatic signal must regulated between 30 and 70 psi 207 483 kPa 2 4 83 bar If produced gas is used MURPHYGAGE as the signal source it should be taken after gas passes through the final scrubber A suitable filter must be positioned before the LS200NDVO to prevent liquids and or particulates from entering the dump valve operator NOTE Check filter periodically for wear and tear and elements that hamper the flow of the pneumatic signal 2 All pressure connections must be tight and mai
6. 0NDVO and LS200NDVOR 55050621 Regulator only 05706499 20BPG D 75 Pressure MURPHYGAGE 0 75 psi 517 kPa 5 17 bar 15010267 Assembly LS200N DVO Assembly Section 15 00 02 0563 01 11 06 10 11100 15000893 15000937 15000124 15000892 BUOYGLAS float Stainless steel float SPDT snaps switch assembly Float shaft extension Accessories 15050375 Weld Collar 2 7 8 in 73 mm 4 1 2 in 114 mm Material ASTM A105 2 UNS 03504 Operating Pressure 2000 psi 13 8 MPa 138 bar Operating Temperature 400 F 204 C 55050617 DVU150 DVU175 Adapter Bushing Order by part number designation 2 1 16 in 52 2 1 2 in 64 mm 1 1 16 in 27 mm 1 NPT 2 NPT Material 2 1 2 Hex bar stock C R S Section 15 00 02 0563 01 11 06 15051098 External Float Chamber E EN le N DRILL 221916 0 777 71 CHAMFER 12 X 45 TTT 4 4 TAP 2 11 5 NPT Operating pressure 2000 psi 13 8 MPa 138 bar Operating temperature 400 204 C 15051168 CB External Float Chamber pc 2C 2 55 oe 5 LASA O w E laje a BREAK EDGE G RQ MAC watt aos eee Hine ces le 74 y 1 4 3 5 PERMISSIBLE 12 7 GZ DT mr NH LEIA Wz
7. DVOR cover The use of a strap wrench or a pipe wrench may be needed With a 9 16 hex wrench loosen the hex head bolt on top of the DVO and remove the existing DVO from the body Ensure that the adjustable orifice is fully raised up so that the actuator arm is not bent when inserted into the body See Figure 2 Insert the new DVO onto the body The DVO manual valve operator must face away from the vessel See Figure 3 Outlet _ 118 NPT Adjustable Orifice 7 Figure 1 DVO Figure 2 Adjustable Orifice 118 NPT eas R inlet 118 NPT Section 15 00 02 0563 01 11 06 8 CAUTION Ensure that the actuator arm is not bent during reassembly 10 With the DVO aligned over the hex on the LS200NDVO body tighten the using the 9 16 hex wrench You may need to hold the DVO while tightening to keep it from rotating 11 The pneumatic input signal should be regulated between 30 and 70 psi for proper setting of the adjustable orifice With the float in the down position adjust the adjustable orifice down until it touches the seat See Figure 4 If the DVO is still leaking make slight adjustments 1 32 turn Excessive adjustments will lock up mechanisms After adjusting make sure float moves freely up and down 12 Replace the LS200NDVO DVOR cover 13 Using the appropriate tools re install the inlet outlet and exhaust fittings to the new DVO NOTE Thread sealant is recommended although care shou
8. MURPHY gt Electric Switch Pneumatic Switch Pending LS200 LS200N LS200NDVOR Series and L1100 Liquid Level Switches Installation and Operations Manual 00 02 0563 01 11 06 Section 15 In order to consistently bring you the highest quality full featured products we reserve the right to change our specifications and designs at any time The latest version of this manual can be found at www fwmurphy com Warranty A limited warranty on materials and workmanship for one year is given with this FW Murphy product A copy of the warranty may be viewed or printed by going to www fwmurphy com support warranty htm CAUTION LS200 Series parts are not interchangeable with other Murphy liquid level products Damage caused by using incorrect parts is not covered by our Limited Warranty Y MY AP 4 ts WARNING Ns w y y y Please read the following information before installing A visual inspection for damage during shipping is recommended before mounting BEFORE BEGINNING INSTALLATION OF THIS MURPHY PRODUCT Disconnect all electrical power to the machine Make sure the machine cannot operate during installation Follow all safety warnings of the machine manufacturer Read and follow all installation instructions OBSERVE all pressure and electrical ratings and require ments for the devices and the operating environment BE SURE all pressure HAS BEEN REMOVED from the vessel before open
9. ing any pressure connections Please contact FW MURPHY immediately if you have any questions Table of Contents Product n i bn di 1 F allf6s e 1 LS200 ad ad AAS e cit e cit a a 1 ES200NDVOR e E dd n ai ba 2 FS20DNDVOs session soms i a sa ai speed nea cea poa ea pe vaci 3 LS ZO OI ont 3 Pressure Vessel Installation LS200 LS200N 11100 4 Direct Installation into the Wall of the Pressure 5 1 4 Installation with a Weld eta c SRS 4 Installation Using Murphy External Float Chamber 5 Installation and Adjustment for Pneumatic 5 Trip Cam Operating Lever Orientation 0 4000 0 6 Replacing and Installing the DVO Assembly 7 Models LS200NDVO amp LS200NDVOR s 7 Electrical ii 10 Replacement Paris iii o a a te o io i oo cv i iat 10 ACCESSOLIES iata alea aia dac paul Lala a ni aa aci anal ata ai it ia dle Vai 11 15050375 WIG 1 11 55050617 DVU150 DVU175 Adapter 11 15051098 External Float Chamber 12 15051168 CB External Float Chamber aa 12 15000478 Float Shaft Extension ii as ia 13
10. ld be used to not allow excess to enter valve Orifice Adjustment 358 Not Adjustable Manual Valve Not Adjustable Operator Figure 4 Orifice Adjustment with float in Figure 3 DVO manual valve operator down position 14 If the LS200NDVO DVOR was removed from the vessel re install it at this time Thread sealant is recommended 15 Connect to the inlet outlet and exhaust fittings according to installation drawings Section 15 00 02 0563 01 11 06 9 Electrical DPDT Snap Switch Green Grd Connection SPDT Snap Switch Black N O Green Grd Connection gg Black N O Switch Rating 5 125 250 480 1 2 125 VDC Switch Rating 10 A 125 250 VAC 1 4 A 250 VDC 1 2 A 125 VDC 2A 6 30 VDC Resistive 1 4 A 250 VDC 1A 6 30 VDC Inductive 10 A 6 24 VDC Inductive Resistive Replacement Parts CAUTION LS200 Series parts are not interchangeable with other Murphy liquid level products Damage caused by the above mentioned is not covered by our Limited Warranty Order by part number designation LS200 15000479 Stainless Steel float for LS200 not interchangeable with L1200 15000124 SPDT snap switch assembly 15010268 LS200 counter balance assembly 15000478 Float shaft extension not interchangeable with L1200 LS200N 15000479 Stainless steel float for LS200N not interchangeable with L1200 15051133 Valve stem LS20
11. ntained tight so as not to leak air gas Section 15 00 02 0563 01 11 06 5 3 Valve seat adjustment be made if air gas begins to leak Care should be taken when adjusting as only slight movement is necessary to stop the leakage excessive force will bind the seating mechanism See the instruction below for adjustment FLOAT SHOWN IN THE UP POSITION Manual Valve Operator SEAT ACTUATOR ARM ADJUSTABLE ORIFICE FLOAT SHOWN IN THE DOWN POSITION g Manual Valve Operator Turn left until air leakage stops CAUTION Only slight adjustment 1 32 turn is needed excessive adjustment will lockup mechanism After adjusting make sure float moves without obstruction CAUTION Avoid excessive Teflon tape which may inhibit proper operation Trip Cam Operating Lever Orientation The LS200 series level switches are shipped with the trip cam orientation set for normal operation or vent on rising level If the application requires a vent on falling level the trip cam operating lever can be moved to the alternate position as indicated in the diagram below Gently depress the cam and rotate to the other lever position Make sure the cam returns to the full height position with the cam lever resting fully in the grove NORMAL OPERATION vent on rising level ALTERNATE OPERATION vent on falling level Cam lever p falling position Cam lever trip rising position
12. o available LS200 L1100 2 5 in 64 mm Hex 10 16 in 258 mm 11 in 279 mm 3 44 in 87 3 50 in 189 mm 175in 44mm 1 56 in 40 mm D 2 80in 71 3 4 in 71 mm LS200 E 2 NPT 1 1 2 NPT Section 15 00 02 0563 _ 01 11 06 LS200NDVOR LS200NDVOR is a float activated pneumatic vent level device used to operate dump valves or similar devices The LS200NDVOR provides a 2 NPT mounting with a pneumatic snap action output for interfacing with pneumatic devices such as our Murphy pneumatic dump valve or with other pneumatic instrumentation Pneumatic media devices require clean dry instrument quality air or gas This unit is supplied with a pressure regulator filter and Murphy 20BPG pressure gage for improved system life and trouble free operation VENT VALVE 3 WAY NC SNAP ACTION WITH 1 16 2 ORIFICE AND VITON SEAT INLET 1 87 NPT OUTLET 1 4 E 248 a 60 2 35 108 FILTER REGULATOR PSI 20BPG 75 PRESSURE GAUGE A MURPHY V U MAC V LS200N Y NSS 1 NAMEPLATE 88 LS200NDVOR pneumatic level switch with dump valve operator pressure regulator gage Section 15 00 02 0563 01 11 06 2 LS200NDVO Pneumatic level switch with snap action Dump Valve Operator DVO without the pressure regulator for those applications whe
13. re the system provides a filter regulator for instrument quality air or gas as the control medium VENT VALVE 3 WAY NC SNAP ACTION WITH 1 16 2 ORIFICE AND VITON SEAT INLET 1 8 NPT 90 ol OUTLET 1 4 NPT 3 53 2 NPT 117 a 56 22 19 44 75 88 3 45 NAMEPLATE ST LS200NDVO pneumatic level switch with dump valve operator LS200N Pneumatic level switch without the DVO and filter regulator VENT VALVE 2 WAY NC SNAP ACTION WITH 1 16 2 ORIFICE AND VITON SEAT INLET 1 8 NPT OUTLET 1 4 NPT 1 8 NPT 26 5 AIR INLET Es _ 20 117 NAMEPLATE 373 ri E 88 3 45 LS200N pneumatic level switch Section 15 00 02 0563 01 11 06 3 Pressure Vessel Installation 5200 LS200N 11100 Direct Installation into the Wall of the Pressure Vessel 1 8 Determine that the float travel is not obstructed by the coupling in the vessel wall internal baffles etc Do NOT use more than one float shaft extension P N 15000478 Make certain the float and extension are tight Before installing the level switch use of a pipe thread sealant is recommended Screw the unit directly into the threaded connection in the wall of the pressure vessel For LS200 and L1100 verify that the electrical connection is positioned a
14. t the bottom For LS200N the 1 8 NPT pneumatic connection should be on top the 3 8 NPT vent connection should be on the bottom for service on a Trip on Rising application The LS200N can be modified for service on a Trip on Falling application Make the electrical wiring connections according to appropriate wiring diagrams for the alarm or shutdown system to be used The electrical connection is 1 2 14 NPT Ensure all electrical connections are insulated and the cover is fully installed before reconnecting electrical power Verify all pressure connections are tight before pressurizing the system Installation with a Weld Collar 1 The weld collar P N 15050375 must be welded into the wall of the pressure vessel according to code standards and good welding practices Tank Wall Follow above instructions for installation directly into the wall of Sa ju the pressure vessel Weld Collar NOTE Weld collar 15050375 can be used ONLY with model LS200 Section 15 00 02 0563 01 11 06 TE Installation Using Murphy External Float Chamber 1 Install the Murphy float chamber 15051098 or 15051168 on the outside wall of the pressure vessel using 1 NPT piping or use the mounting surface with a bracket Position the 2 NPT threaded connection at the height where you want the level switch to operate The 2 NPT threaded connection must be positioned away from the tank wall
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